Listar por autoría "991c7d4c-3d5b-43d7-bd60-f56709e022b8"
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A comparison between the modeling of a reciprocating compressor using artificial neural network and physical model
Belman, Juan; Ledesma, S.; Barroso-Maldonado, Juan Manuel; Navarro-Esbrí, Joaquín Elsevier (2015)This article presents the development, validation, and comparison of two methods for modeling a reciprocating compressor. Initially, the physical mode is based on eight internal sub-processes that incorporate infinitesimal ... -
A simplified black-box model oriented to chilled water temperature control in a variable speed vapour compression system
Romero Pérez, Julio Ariel; Navarro-Esbrí, Joaquín; Belman, Juan Elsevier (2011-02)The aim of this work is to propose a black-box model to accurately predict the chilled water temperature dynamic response of a vapour compression chiller. The model is oriented to be of value in determining an adequate ... -
Application of a lumped model for predicting energy performance of a variable-speed vapour compression system
Navarro-Esbrí, Joaquín; Ginestar, D.; Belman, Juan; Milián, V.; Verdú, Gumersindo Elsevier (2010)This work presents a model for a variable-speed vapour compression system that is able to predict accurately the system performance using data easily obtained from an industrial facility. The model uses information on the ... -
Automated modelling of complex refrigeration cycles through topological structure analysis
Belman, Juan; Riesco Avila, J.M.; Gallegos-Muñoz, Armando; Navarro-Esbrí, Joaquín; Aceves, S.M. Elsevier (2009)We have developed a computational method for analysis of refrigeration cycles. The method is well suited for automated analysis of complex refrigeration systems. The refrigerator is specified through a description of flows ... -
Comparative study of transcritical vapor compression configurations using CO2 as refrigeration mode base on simulation
Pérez García, V.; Belman, Juan; Navarro-Esbrí, Joaquín; Rubio Maya, C. Elsevier (2013-03)Despite of the excellent efficiency of the CO2 transcritical cycle in heat pump mode, there is a loss of efficiency in refrigeration mode compared with the subcritical vapor compression cycle with HFC refrigerants. This ... -
Computational tool for experimental refrigeration system analysis using spreadsheets
Mendoza-Miranda, Juan Manuel; Belman, Juan; Gallegos-Muñoz, Armando; Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín Publicaciones DYNA (2014-12)This paper presents a spreadsheet application for data filtering and energy analysis, which has applications in research and experimental evaluation of the energetic performance of alternative refrigerants. Experimental ... -
Evaluación energética de los refrigerantes R1234yf y R152a como alternativa al R134a en sistemas de refrigeración
Navarro-Esbrí, Joaquín; Mota-Babiloni, Adrián; Peris, Bernardo; Moles, Fran; Mendoza-Miranda, Juan Manuel; Belman, Juan; Rubio Arana, Jose Cuauhtémoc Universidad Nacional de Educación a Distancia (2013)En este artículo se presenta la evaluación del desempeño teórico de los refrigerantes R1234yf y R152a como alternativas al R134a para ciclos de refrigeración. La evaluación se realiza para un ciclo de simple etapa en un ... -
Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system
Navarro-Esbrí, Joaquín; Mendoza-Miranda, Juan Manuel; Mota-Babiloni, Adrián; Barragán Cervera, Angel; Belman, Juan (2013-05)This paper presents an experimental analysis of a vapor compression system using R1234yf as a drop-in replacement for R134a. In this work, we compare the energy performance of both refrigerants, R134a and R1234yf, in a ... -
Experimental exergy analysis of R513A to replace R134a in a small capacity refrigeration system
Mota-Babiloni, Adrián; Belman, Juan; Makhnatch, Pavel; Navarro-Esbrí, Joaquín; Barroso-Maldonado, Juan Manuel Elsevier (2018-11-01)The replacement of HFCs using lower GWP refrigerants in the coming years is a priority to reduce the predicted climate change. The exergy analysis of vapor compression systems can help to identify the feasibility of ... -
Experimental study of R1234yf as a drop-in replacement for R134a in a domestic refrigerator
Belman, Juan; Rodríguez Muñoz, A. P.; Gutiérrez Pérez-Reguera, C.; Mota-Babiloni, Adrián Elsevier (2017-09)This paper presents an experimental study for three identical domestic refrigerators using R1234yf as a drop-in replacement for R134a. An alternative methodology was proposed to estimate the optimal mass charge for R1234yf; ... -
Herramienta computacional para analizar un sistema experimental de refrigeración usando hojas de cálculo
Mendoza-Miranda, Juan Manuel; Belman, Juan; Gallegos-Muñoz, Armando; Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquín Federación de Asociaciones de Ingenieros Industriales (2014)This paper presents a spreadsheet application for data filtering and energy analysis, which has applications in research and experimental evaluation of the energetic performance of alternative refrigerants. Experimental ... -
Overview of low GWP mixtures for the replacement of HFC refrigerants: R134a, R404A and R410A
Heredia-Aricapa, Y.; Belman, Juan; Mota-Babiloni, Adrián; Serrano-Arellano, Juan; Garcia Pabon, Juan Jose Elsevier (2019-11-15)The current European F-gas regulation establishes restrictions in the use of fluoride refrigerants with a high global warming potential (GWP) in applications of refrigeration and air conditioning (RAC) systems. Moreover, ... -
Shell-and-tube evaporator model performance with different two-phase flow heat transfer correlations. Experimental analysis using R134a and R1234yf
Navarro-Esbrí, Joaquín; Moles, Fran; Peris, Bernardo; Barragán Cervera, Angel; Mendoza-Miranda, Juan Manuel; Mota-Babiloni, Adrián; Belman, Juan Elsevier (2014-01)This work presents a model of a shell-and-tube evaporator using R1234yf and R134a as working fluids. The model uses the effectiveness-NTU method to predict the evaporation pressure and the refrigerant and secondary fluid ... -
Using ANNs to approach to the energy performance for a small refrigeration system working with R134a and two alternative lower GWP mixtures
Belman, Juan; Mota-Babiloni, Adrián; Ledesma, Sergio; Makhnatch, Pavel Elsevier (2017)In this paper, an artificial neural network application to model a small refrigeration system is presented. The main objective of this study is an energy comparison of three refrigerants: R134a, R450A and R513A. The ...